TEMPORO-MAXILLARY ARTICULATIONS. 153 



ARTICULATIONS OF THE HEAD. 



The only movable articulation is the temporo-max- 

 illary ; all the other bones of the head are immovably 

 articulated together. 



Temporo-maxilla ry. 

 BONES: Condyles of inferior maxillary and glenoid 



cavity. 

 LIGAMENTS : 

 CAPSULAR. 



Origin Neck of condyle. 

 Insertion Circumference of glenoid cavity. 

 ' INTERARTICULAR FIBRO-CARTILAGE. 



Origin Capsular 

 ligament and external 

 lateral ligament. 



Insertion, Tendon 

 of external pterygoid 

 and capsular ligament. 



EXTERNAL LATERAL. FIG ' n - Tm >2ZX? LAK ARTICir - 



/-> . . rn 11 <* temporal bone; b, inferior maxillary bone; c, 



Uriqin lUDerCle capsnlar ligament; d, stylo-maxillary ligament; e, in- 

 ternal lateral ligament. 



of zygoma. 



Insertion Below neck of inferior maxillary and 

 posterior border. 

 INTERNAL LATERAL. 



Origin Spine of sphenoid. 



Insertion Lower border of the inferior dental 

 foramen. 



STYLO-MAXILLARY. 



Origin Point of styloid process. 

 Insertion Angle of inferior maxillary. 

 SYNOVIAL MEMBRANES: Two sacs, one above and the 



other below the interarticular cartilage. 

 NERVES : From the auriculo-temporal. 



